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Webster Hydraulic Control Valves

Webster/Webtec manufactures hydraulic flow controls, pressure control valves and directional control valves for mobile machinery. We offer choices of threading and port size for standard or custom specifications. We offer replacements for Webster gear pumps, Milwaukee cylinders, and Teledyne valves.

Fixed Flow Control Valve - Model ILFC

The ILFC is a pressure compensated flow control valve (fixed, in-line) with 2 ports. Can be used to maintain the flow rate of hydraulic fluid for operating cylinders and motors at a constant speed.

Webster Instruments WEBTEC ILFC flow control valve

  • Flow Ranges: 0.4 - 3.7 gpm (1/4” ports), 0.4 - 4.2 gpm (3/8” ports)
  • Maximum Pressure: 3000 psi
  • Ports: BSPP, NPTF & SAE
  • Working pressures up to 210 bar (3000 psi)
  • Maximum flow 16 lpm (4.2 US gpm)
  • BSP and NPT ports available
  • Material: steel & aluminum - Zinc plated clear passivate.
  • Sizes: 1/4" - 3/8"
  • Pressure compensated for a constant flow rate under varying pressures.
  • Pre-set to any flow rate between 0.4 to 4.2 gpm.
  • Uncontrolled flow is permitted in reverse direction.
  • Cartridge version available

Part Numbers:

  • ILFC-14
  • ILFC-16

Pressure Compensated Constant Flow Valves - Model VFC

Maintain a constant flow rate of hydraulic fluid using variable flow control valves.

Webster Instruments / WEBTEC
VFC Variable Flow Pressure
Compensated Control Valve

  • Flow Ranges: 0.4 - 5.2 gpm (1/4” ports), 0.5 - 10 gpm (3/8” ports), 0.5 - 14.5 gpm (1/2” ports)
  • Maximum Pressure: 3000 psi
  • Ports: BSPP, NPTF & SAE
  • Pressure compensated to ensure a constant flow rate under varying pressures.
  • Accurate adjustment of flow rate under pressure in one direction
  • Adjustment dial can be locked in position with a weather-sealed set screw to prevent corrosion.
  • Free flow is permitted in reverse direction. Uni-directional version also available.

Part numbers:

  • VFC-20
  • VFC-40
  • VFC-55

Fixed Priority Flow Divider - Model FV120

Fixed priority flow dividers allow you to split a single input flow into a regulated flow and an excess flow. The regulated (Priority) flow can be used to perform the required task while the excess flow which can be routed directly back to the oil reservoir or redirected to drive another system, which can eliminate the need for an additional pump to drive an ancillary system. This is a 3-port flow divider which is pressure compensated and contains an on-board relief valve.

Webster Instruments / WEBTEC FV120 Fixed Priority Flow Divider

  • Fixed flow divider valve
  • Total Flow Capacity: 20 gpm, Maximum Pressure: 3000 psi
  • Ports: Inlet and By-Pass Port: 1/2” NPTF, 1/2” BSPP, 7/16” -20UN #4 SAE ORB
  • Priority and Relief Port: 3/8” NPTF, 3/8” BSPP, 9/16” -18UN #6 SAE ORB
  • Pressure compensation ensures a constant flow rate under varied pressures.
  • Adjustment dial enables accurate flow rate adjustment under pressure in one direction
  • Adjustment dial can be locked in position with a weather-sealed set screw to prevent corrosion.
  • Uncontrolled flow is permitted in reverse direction. Uni-directional version also available.
  • Proportional fixed flow divider also available.

Fixed Proportional Flow Divider - Model FV200

Three flow ranges are available:

You can split an input flow into dual output flows using a proportional flow divider. Each output can be a definable percentage of the total input flow. Ex: a 50/50 flow divider splits a single input flow into two equal output flows. These outputs could be used to operate two motors at equal speeds. Standard models offer proportional splits of 25/75, 50/50, and 40/60. Custom flow dividers are available up to a proportional split of 10/90. The model FV200 offers pressure compensation to maintain output flow at a set ratio of the input flow, irregardless of pressure differences between output ports.

Webster Instruments / WEBTEC
FV200 Proportional Flow Divider

  • Flow Ranges: 2.6 - 8 gpm, 5.3 - 13 gpm, 10.5 - 20 gpm, Maximum Pressure: 3000 psi
  • Ports: Inlet Port: 1/2” BSPP, 3/4” BSPP
  • Outlet Ports: 3/8” BSPP, 3/4” BSPP

Variable Priority Flow Divider - Model VFD50

Priority Type Flow Dividers split a single input flow into a Priority flow which is a regulated flow, and a bypass flow, which is excess flow. The excess bypass flow can can be rerouted to the hydraulic fluid reservoir or used to power a second system, which can eliminate the need for a second pump to drive another hydraulic circuit. Easy adjustments to the priority flow can be made visually using a hand dial. Pressure compensation allows both flows (priority and bypass) to be controlled concurrently at their own pressures without changing the flow rate of the priority flow.

Webster Instruments WEBTEC VFD50 Variable Priority Flow divider

  • Flow Ranges: 0 - 4 gpm, 0 - 8 gpm
  • Maximum Pressure: 3600 psi
  • Ports: 3/8” BSPP x 3 Ports, Manifold Mounted, 3/8” NPTF x 3 Ports

Other Variable Priority Flow Dividers

 

  • Variable Priority Flow Divider with relief internally drained - model RV2FV2V
  • Variable Priority Flow Divider with anti-cavitation check valve from regulated to excess - model AC2FV2V
  • Variable Priority Flow Divider with reverse flow check from priority to Inlet - model CK2FV2V

Flow Divider with Manual Priority Control - Model 2FV2V

A hand dial on this manually-controlled flow divider allows visual adjustments to pre-determined regulated flow to meet pressure requirements. Pressure compensation in the model 2FV2V allows both the regulated flow and bypass (excess) flow to be controlled with a check valve, including an anti-cavitation check valve, which can be routed between the priority and bypass flows. This flow divider is available in a version that can be controlled remotely.

Webster Instruments / WEBTEC 2FV2V Flow Divider with Manual Priority Control

  • Flow Ranges: 0 - 3 gpm, 0 - 5 gpm, 0 - 8 gpm, 0 -12.5 gpm, 0 - 20 gpm, 0 - 25 gpm, 0 - 30 gpm
  • Maximum Pressure: 3600 psi
  • Port Threads, Inlet, Regulated Flow and Excess Flow:
    3/4” BSPP, 3/4” NPTF, M22 x 1.5, M27 x 2, 1-1/16” -12UN #12 SAE ORB, 1/2” BSPP

Flow Divider with Electric Motor Drive - model 2FV2V

Minimum to full Priority flow in 15 seconds.

Driven by a 12 VDC (12 - 16 VDC) allows adjustment to the valve from a distant position such as in a heavy machine cab or a remote control panel. Pressure compensation allows both flows to be used at the same time at different pressures without affecting the priority (regulated) rate of flow. Blocking the bypass port while using a relief valve on the inlet line allows you to use the model 2FV2V as a unidirectional two port in line flow control.

Webster Instruments / WEBTEC 2FV2V Flow Divider with
Electric Motor Drive

  • Flow Ranges: 0.15 - 3 gpm, 0.15 - 5 gpm, 0.15 - 8 gpm, 0.15 -12.5 gpm, 0.15 - 20 gpm, 0.15 - 25 gpm, 0.15 -30 gpm
  • Maximum Pressure: 3600 psi]
  • Port Threads Inlet Regulated Flow and Excess Flow: 3/4” BSPP, 3/4” NPTF, M22 x 1.5, M27 x 2, 1-1/16” -12UN #12 SAE ORB, 1/2” BSPP
  • Manifold mounted

Flow Divider with Remote Priority Control - model FDM

A great choice for agricultural and industrial uses, as this remote control flow divider is vibration and contamination resistant and can be powered from a vehicle supply using the on-board 9 - 28 V D.C. supply. Current draw is automatically limited to avoid overheating or motor overload. Model FDM offers a low-cost method of controlling the speed of a hydraulic motor. The regulated (priority) flow port gives an output free of affect by load pressure while the bypass port can be directed to power a secondary hydraulic circuit. Remote control use from up to 130 feet is possible using a potentiometer.

Flow Divider with Remote Priority Control - model FDM

  • Designed to meet Nema type 5
  • Flow Ranges: 0.15 - 3 gpm, 0.15 - 5 gpm, 0.15 - 8 gpm, 0.15 -12.5 gpm, 0.15 - 20 gpm, 0.15 - 25 gpm, 0.15 -30 gpm
  • Maximum Pressure: 3600 psi
  • Port Threads Inlet Regulated Flow and Excess Flow: 3/4” BSPP, 3/4” NPTF, M22 x 1.5, M27 x 2, 1-1/16” -12UN #12 SAE ORB, 1/2” BSPP
  • Also available in a Manifold Mounted Variable Priority Flow Divider

Fixed Flow Divider - model FDC60

These cast iron and steel Flow Divider-Combiners divide a primary flow into two separate flows which are pressure compensated to maintain the same ratio irregardless of pressure differences between the lines. Return line flows are also held in the same ratio. Lack of aluminum in the construction makes them a good choice for mining and other high-endurance applications.

Fixed Flow Divider combiner - model FDC60

  • Default flow ratios from 50% - 50% up to 10% - 90%.
  • Flow ranges are available from 1.3 - 18.5 gpm.
  • Flow Ranges: 0.5 - 1.3 gpm, 1.3 - 2.6 gpm, 2.1 - 5.3 gpm, 4.2 - 8 gpm, 6.6 - 10 gpm, 9 - 13 gpm, 12 - 16 gpm, 14.5 - 18.5 gpm
  • Maximum Pressure: 4500 psi

Diverter Valve - model SV80

As an alternative to using a directional control valve, a diverter valve is adequate when there is no need for a neutral position. Flows can be quickly switched between two lines, allowing fast switches from one system to another, or from a system to the reservoir, creating an idling circuit. Flow may be directed two ways: mechanically pushing the spool with spring offset or mechanical push pull operation with an adjustment knob.

Diverter Valve - model SV80

  • Maximum Flow: 20 gpm, Maximum Pressure: 3000 psi
  • Ports: 1/2” BSPP, 7/8” -14UN #10 SAE ORB, M22 x 1.5, 1/2” NPTF
  • Operation: Spring Offset, Mechanical Push - Manual, Push - Pull - Threaded, Push - Pull

Diverter Valve - model DV80

Allows the flow to be diverted mechanically by an offset spring pushing the spool. The spool and spring are contained in a sealed housing to prevent environmental corrosion. Available in one spool or two spool versions. The 2-spool version allows you to divert flow from one circuit to another or to a hydraulic fluid reservoir. A wide variety of spool ends and port threading are available.

Diverter Valve - model DV80

  • Maximum Flow: 20 gpm, Maximum Pressure: 3000 psi
  • Ports: 1/2” BSPP, 7/8” -14UN #10 SAE ORB
  • Operation: Roller, Ball, Manual

Manual Directional Control Valve - model 180

A rotary spool type directional control valve which contains a rotor that rotates relative to body of the valve. Inlet and outlet ports can be connected in many different flow patterns to control pressurized fluid for start, stop or directional changes. Webster’s flat rotors compensate for valve wear, creating near zero-leak through the life of the valve. Available with 7 different flow patterns, 3 flow ratings and several porting options. These valves may be mounted on a manifold, on a panel or used inline on the hydraulic circuit. Manual control is achieved using ball handles, spring centring and detents.

Manual Directional Control Valve - model 180

  • Valve can be used in series without drain up to a max working pressure of 3600 psi.
  • Flow Ranges: up to 10 gpm, three sizes available
  • Maximum Pressure: up to 10000 psi
  • Ports: SAE, BSPP & Manifold Mount

Directional Control Valve - model BG4D series

Durable hydraulic directional control valve used for mobile and industrial systems. Minimal leakage in the spool even under the 3625 psi pressure tank port rating. Methods of operation include lever, cam and pilot (air or oil).

  • Nominal flow rate: 14.5 gpm
  • Max. operating pressure: 3625 psi
  • Max. pressure on ‘T’ port: 3625 psi
  • Recommended operating viscosity range: min. 13 Cst - max 400 Cst
  • Recommended operating temperature range: min. -22 °F - max 176 °F
  • Available with relief valve from P-T, 3000 psi max.
  • 5 spool types including a special hose rewind spool and 2 position option.
  • Seals - medium nitrile
  • Leakage: typical max. allowable on works test 0.004 gpm at 2000 psi, oil 35 cSt at 104 °F
  • Unrestricted Mounting

Webster BG4D directional control valves

Direct In-line Pressure Relief Valve - model RV020

Pressure relief valves protect hydraulic circuits from overload by limiting maximum pressure to a pre-set capacity. The relief pressure setting is set by Webster to the customers specifications within pressures from 290 psi to 3000psi. The fast response of this valve protects the hydraulic circuit from shock and overload or the expansion of thermal fluids. Due to straight-through porting, the valve can be connected inline using a “T” connector. Model RV020 direct acting in-line relief valve is minimally affected by particle contamination

webster Direct In-line Pressure Relief Valve - model RV020

  • Maximum Flow: 5 gpm
  • Maximum Pressure: 3000 psi
  • Ports: 3/8” NPTF, 3/8” BSPP

Webster YB Pumps

Webster aluminum gear pumps are light in weight and compact.

Webster YB and MYB aluminum gear pumps and motors

  • Available in 6 displacements volumes from 0.15 to 0.73 in3/rev
  • Pressures to 2000 psi continuous and up to 2500 psi with intermittent use

MYB Motors

Aluminum gear motors - lightweight and compact.

  • 4 displacements from 0.29 to 1.73 in3/rev
  • Speeds to 5000 rpm
  • Supply pressure to 2000 psi

Webster B Series Hydraulic Pumps

Cast iron gear pumps with fixed clearance.

Webster B Series Hydraulic Pumps and MB motors

  • 9 displacements from 0.11 to 0.74 in3/rev
  • Pressures to 3500 psi

MB Series Hydraulic Motors

Cast iron fixed clearance gear motors.

  • 7 displacements from 0.15 to 0.59 in3/rev
  • Pressure to 2500 psi

YC Series Hydraulic Pumps

Pressure-balanced aluminum gear pumps.

YC Series Hydraulic Pumps MYC motors

  • 6 displacements from 0.58 to 1.94 in3/rev
  • Pressures to 2500 psi

MYC Series Hydraulic Motors

Pressure-balanced aluminum gear motors

  • 6 displacements from 0.58 to 1.94 in3/rev
  • Speeds to 5000 rpm

K Series Hydraulic Pumps

Pressure-balanced gear pumps with wear plate. Very durable and can be used many ways.

Webster K hydraulic pumps and MK hydraulic motors

  • 9 displacements from 0.86 to 3.88in3/rev

MK Series Hydraulic Motors

Flexible, rugged, dependable hydraulic gear motors

  • Seven displacements from 1.29 to 3.88 in3/rev
  • 1300 lb-in torque at speeds to 2000 rpm
  • 2500 psi supply pressure